A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5910-00-925-4496
NSN 6150-01-364-4048
NSN 5905-01-147-1489
NSN 5835-01-028-0097
NSN 5996-01-143-2583
NSN 5965-00-150-1144
NSN 6145-00-112-9476
NSN 5950-00-083-6775
NSN 5895-00-069-7985
NSN 2925-00-090-3470
NSN 6150-00-216-6542
NSN 5998-00-941-8075